Disk-sharpening means.



No. 869,624. PATENTED OCT. 29. 1907.

W. S. CLINE.

DISK SHARPBNING MEANS. I APPLIUATION FILED MAY 7, 1906.

W B) M /W A TTO/G/VE Y5 IHE NDRRIS PETERS co. \v/vmucrou UNITED STATES PATENT OFFICE.

WINFIELD S. CLINE, OF TRENTON, MISSOURI, ASSIGNOR OF ONF-HALF TO FRANK HALL, OF

' TRENTON, MISSOURI.

DISK-SHARPENING MEANS.

No. 869,624. Specification of Letters Patent. Patented Oct. 29, 1907. Application filed May 7; 1906- Serial No. 315.505.

To all whom it may concern: The knife holder 17 is adjustably held in plate 16 by Be it known that I, WINFIELD S. GLINE, a citizen of a set bolt 18. The lower end of the knife holder is 55 the United States, residing at Trenton, in the county provided with a vertical central slot wherein the sharpof Grundy and State of Missouri, have invented a new ening knife 19 is adjustably held by means of the set and useful Disk-Sharpening Means, of which the folbolt 20.

lowing is a specification. A lever 21 having openings to receive the pivot pin My invention relates to machines for sharpening the 15 and the knife holder 17 is placed upon the plate 16 G disks of disk plows or other machines having a circular and a nut is secured upon the threaded upper end of cutting edge. pivot pin 15. The end of lever 21 opposite pivot pin 15 One object of my invention is to provide means to is extended outwardly and downwardly at the side of constantly maintain the sharpening knife in contact the machine frame. By means of a perforation in this with the disk no matter how irregular or out of shape the end of lever 21 a cord 22 is attached thereto. The said 6 5 latter may be. cord passes over a pulley 23 secured to an outwardly A further object is to provide means whereby the extending arm 24 on the machine frame and has on its sharpening knife may be adjusted as desired in rela end a weight 25. The pulley is so pointed that the arm tion to the disk and the entire edge of the sharpening of the lever 21 is continuously drawn inwardly and knife made use of. downwardly. 7 0

\Vith these and other objects in view my invention The operation of my improved disk sharpener is as consists in the parts, improvements and combinations followsz lhe disk to be sharpened is placed on the of parts hereinafter fully set forth and pointed out in gear 1 l and fastened down by the lap 12. The knife is the claims, it being understood however, that various adjusted to bear properly upon the disk 13, it being minor changes in form, proportion and arrangement of evident that the sharpening knife will be readily adparts may be resorted to without departing from the justable to operate upon a disk of almost any size and principle of my invention or sacrificing any of the adshape since by means of set bolt 18 the knife holder and 25 vantages thereof. knife may be turned to any horizontal angle and by In this specification and in the accompanying drawmeans of the set bolt 20 the knife may be given a conings forming a part thereof, the same reference characsiderable adjustment in a vertical plane. By these two ters are applied to the same parts throughout. adjustments the sharpening knife 19 is made univer- In the drawingsz Figuro 1 is a view in side elevation ally adjustable. The parts having been placed in 30 of one form of device embodying my invention. Fig. proper relative position power is applied at the pulley 2 is a top plan view of the device shown in Fig. 1. wheel 8 when the disk 13 will be rotated and the sharp- Reference numeral 1 designates the machine frame ening knife 19 will be maintained in constant contact having a body 2 and standards 3, the standards being with the disk, no matter how irregular the edge or surconnected by cross braces 4 and the cross braces being face of the disk maybe, by the weight 25 which exerts 3 5 connected y a longitudinal b11100 g 6 M a downward pull upon the knife as well as a pull toward provided for a shaft 7 having the pulley S secured to one the center of the disk. end thereof and the gear 9 at its other end. A shaft 10 It will be evident that I may mount as many disk is journaled in the body of the machine frame and in a rotating and sharpening devices along the shaft 7 as the step bearing 11 in the brace 5. While the shaft 10 is length of the shaft, which may be increased at will,

40 here shown vertically it will be evident that this shaft will ermit,

may be placed at any convenient angle. On the shaft The sharpening knife may be moved longitudinally 10 near its upper end is mounted a gear 11 meshing in the knife holder or if desired the screw 20 may be with the gear 9. The upper end of shaft 10 is threadloosened and the knife turned over. In this way I am ed to receive a tap 12 which is used to firmly secure able to make use of the entire edge of the sharpening 45 the disk 13 to be sharpened upon the upper face of the knife.

g I claim At one Side of the body of the machine frame and 1. Ina device of the class described the combination of substantially midway between the pulley S and the a rototable shaft, means for securing a disk thereto, a sup shaft 10 is a post 14 having a broad, lat upper face from port, a pivoted device thereon. a knife holder longitudi 50 which a pivot pin 15 projects upwardly Lying. Hat on nally and rotatably movable in the said device, a sharpenthe top of post 14 and pivoted upon pin 15 is a plate 16 knife adjustable in siud holder, a. ng otetl ripen 10 support and aptilnicd for the passa e of the knife which has 91 Vertical p g therein all the 0nd PP holder and means for drmving the free end of the lever site pivot pin 15 for the passage Of 21 knife llOldOl 17. downwzu'dly and toward the center of the disk.

10 for the passage of the knife holder and means for pulling the free end of the lever horizontally and downwardly to contact the knife with the disk.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

W'INFIELD S. CLINE.

Witnesses S. M. HILL, ANNA McCLURn. 

